Sr. Heat Transfer Engineer (Turbomachinery)
El Segundo, CA / Remote (US Based)
Engineering (Turbomachinery) /
Full Time (Salaried) /
Hybrid
We are seeking an experienced Heat Transfer Engineer to lead component- and system-level thermal modeling for its advanced turbomachinery systems. You will own the development and integration of heat transfer and secondary flow models across the compressor, turbine, and combustor, enabling robust thermal boundary conditions, cooling flows, and clearance predictions. You will work closely with aerodynamics, mechanical design, systems, and controls teams to ensure thermally integrated, operable hardware. Ideal candidates will have prior experience in high-temperature turbomachinery design, including thermal FEA, flow network modeling, and transient clearance analysis.
Arbor is a team of engineers, scientists, and builders focused on creating the next generation of clean energy systems. Our work combines high-efficiency turbomachinery, advanced combustion, and modular design to deliver zero-emission, fuel-flexible power at scale. We’ve drawn from aerospace and industrial expertise to meet the challenge of surging electricity demand—and to offer a solution that installs faster, performs better, and costs less than conventional alternatives. We’re designing energy systems that can evolve with the world’s needs.
Responsibilities
- Own thermal and heat transfer analysis for rotating and stationary turbomachinery components.
- Develop and maintain secondary air system models, including cooling and sealing flow circuits.
- Generate thermal boundary conditions for structural and clearance analysis.
- Collaborate with aero, mechanical design, and systems teams to ensure robust thermal integration and operability.
- Work with test and validation teams to define thermal instrumentation requirements and interpret test data.
- Support transient thermal analysis for startup, shutdown, and off-nominal operating conditions.
- Document results and methods in formal design memos and interface reports.
- Contribute to the development of analysis tools and modeling standards for thermal integration.
Requirements
- Bachelor’s degree in Mechanical, Aerospace, or a related Engineering field.
- 6+ years of experience in heat transfer and secondary flow analysis for turbomachinery (gas turbine, aero engine,sCO₂, etc.).
- Experience with thermal FEA, internal cooling design, and/or system-level secondary air system modeling.
- Proficiency in tools such as ANSYS, CFX, Siemens Flowmaster, or equivalent.
- Understanding of transient thermal behavior and its effect on clearances and mechanical integrity.
- Familiarity with turbomachinery design principles and thermomechanical integration.
- Ability to manage thermal interfaces across teams and contribute to system-level decisions.
- Strong communication and documentation skills.
Benefits
- Stock options
- Medical, dental, and vision insurance (Arbor covers 90% for employees)
- Basic life insurance fully covered
- Health savings account (HSA) with matching
- Flexible savings account (FSA)
- Unlimited PTO
- 12+ company holidays, including Earth Day!
- 401(k)
- Commuter benefits
- Annual learning and development stipend
- And more!
$150,000 - $175,000 a year
The salary is subject to the applicant’s skills, qualifications, and experience.
Arbor is proud to be an equal opportunity employer. We evaluate qualified applicants without regard to race, religion, national origin, gender identity or expression, sexual orientation, age, marital or veteran status, disability, or any other protected characteristic under applicable law. Solving global energy challenges requires a wide range of perspectives and experiences, and we are committed to building a team that reflects the world we serve.
